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Answer: Create a Cloud Storage lifecycle rule with Age: '30', Storage Class: 'Standard', and Action: 'Set to Coldline', and create a second GCS life-cycle rule with Age: '365', Storage Class: 'Coldline', and Action: 'Delete'.
The correct answer is A. To store data files in Cloud Storage while minimizing file storage cost, you need to move older data to a less expensive storage class and eventually delete it after a certain period. Option A does exactly this by moving the data from the 'Standard' class to the 'Coldline' class after 30 days and then deleting the data after 365 days in the 'Coldline' storage. This approach ensures that data storage costs are minimized while retaining the data for one year. Option D, although similar, specifies transitioning to 'Nearline' storage before deletion, which is suboptimal compared to directly moving to 'Coldline' and then deleting. Options B and C incorrectly set the lifecycle rules and do not follow a logical and cost-effective sequence.
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TerramEarth manufactures heavy equipment for the mining and agricultural industries. They have 20 million vehicles in operation, collecting 120 fields of data per second, with about 200,000 vehicles connected to a cellular network. Data is currently stored locally on the vehicles and transferred to a single U.S. west coast-based data center when serviced. The current system results in data that is 3 weeks old, and they want to reduce the unplanned vehicle downtime to less than 1 week and minimize file storage costs. TerramEarth has decided to store data files in Cloud Storage. You need to configure Cloud Storage lifecycle rules to retain data for 1 year and minimize the storage cost. Which two actions should you take?
A
Create a Cloud Storage lifecycle rule with Age: '30', Storage Class: 'Standard', and Action: 'Set to Coldline', and create a second GCS life-cycle rule with Age: '365', Storage Class: 'Coldline', and Action: 'Delete'.
B
Create a Cloud Storage lifecycle rule with Age: '30', Storage Class: 'Coldline', and Action: 'Set to Nearline', and create a second GCS life-cycle rule with Age: '91', Storage Class: 'Coldline', and Action: 'Set to Nearline'.
C
Create a Cloud Storage lifecycle rule with Age: '90', Storage Class: 'Standard', and Action: 'Set to Nearline', and create a second GCS life-cycle rule with Age: '91', Storage Class: 'Nearline', and Action: 'Set to Coldline'.
D
Create a Cloud Storage lifecycle rule with Age: '30', Storage Class: 'Standard', and Action: 'Set to Coldline', and create a second GCS life-cycle rule with Age: '365', Storage Class: 'Nearline', and Action: 'Delete'.